I am just re-posting this here in hopes that my problem can get some help (the other post said 'RESOLVED' and of course it is not for me still!)
I have been going CRAZY having problems with updating permalinks, trying to change my .htaccess file, etc, and I still can not view actual posts on my blog site, jpopexpress.com. I'm really really frustrated now - if anyone can help, I would SO appreciate.
Let me try to explain what happened so you could maybe better help me:
1) First, I had an issue with one of those '500 - Internal Server Error's (I had made a duplicate post that suddenly disallowed me to edit or delete any post). I managed to fix that issue by disabling and re-enabling/updating all of the plugins that I had set up for the blog (also I upgraded to WordPress 2.6.2).
2) I also followed one user's suggestion to change the permalink structure to the default, then I changed it back to the "Day and Name" permalink structure. This began the permalink problem.) Now I can not view any full post on my site:
3) I will also note that all my blog files reside in the "sitename.com/BLOG" structure, but are viewable in the root folder - I still really think that this may have something to do with the problem
4) Again, as I say, I tried to edit the contents of the .htaccess file / changing permissions of that file, etc, but this did still not resolve the problem.
Also, I looked for what used to be the "update permalink" feature, but it looks as if they no longer have that in the latest (2.6.2) versions of the WordPress interface.
Any help anyone can provide would be so greatly appreciated...